package cn.pa4j.lpws;

import java.util.HashMap;
import java.util.Map;

/**
 * Created by 060016 on 2019-3-15.
 */
public class TT {
    public static void main(String[] args) {
        Map<String,Boolean> isLiveMap = new HashMap<>();
        Boolean aaa = isLiveMap.get("aaa");
        System.out.println(aaa);
    }
}
